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單項選擇題

If the low level alarm of the diesel fuel day tank fails to function, you can expect trouble from（）

A.overheated injection pumps
B.water condensed in the cylinders
C.fuel dilution of the lube oil
D.air in the fuel system

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單項選擇題

Before starting a diesel engine, you should always（）

A.check the pyrometer readings
B.check the crankcase oil level
C.check the fuel oil strainers
D.clean the fuel system

單項選擇題

Sludge formation in a diesel engine lube oil system is caused by（）

A.carbonization of oils from the combustion chambers
B.emulsions of lube oil and water
C.coagulation of unburned fuel below the piston rings
D.all of the above

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